Fix tokens using too-random of a value

CTFd/utils/security/auth.py

@@ -27,7 +27,7 @@ def generate_user_token(user, expiration=None):
         temp_token = UserTokens.query.filter_by(value=value).first()
 
     token = UserTokens(
-        user_id=user.id, expiration=expiration, value=hexencode(os.urandom(32))
+        user_id=user.id, expiration=expiration, value=value
     )
     db.session.add(token)
     db.session.commit()